Reduction of a collisional-radiative mechanism for argon plasma based on principal component analysis
Reduction of a collisional-radiative mechanism for argon plasma based on principal component analysis
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DOI：
10.1063/1.4922077
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发表时间：
2015-06-01
影响因子：
2.2
通讯作者：
Parente, A.
中科院分区：
文献类型：
--
作者：
Bellemans, A.;Munafo, A.;Parente, A.
本文考虑使用基于主成分分析 (PCA) 的方法开发氩等离子体的简化化学模型。从电子特定的碰撞辐射模型开始，通过在由其主要成分组成的减少的基础上投影全套变量来减少变量集（即质量分数和温度）。因此，流动控制方程仅针对主成分求解。所提出的方法源自燃烧界，其中歧管生成主成分分析（MG-PCA）已被开发为一种成功的还原技术。应用考虑氩气中的电离冲击波。获得的结果表明，使用 MG-PCA 技术可以大大减少计算时间。 (C) 2015 AIP 出版有限责任公司。
This article considers the development of reduced chemistry models for argon plasmas using Principal Component Analysis (PCA) based methods. Starting from an electronic specific Collisional-Radiative model, a reduction of the variable set (i.e., mass fractions and temperatures) is proposed by projecting the full set on a reduced basis made up of its principal components. Thus, the flow governing equations are only solved for the principal components. The proposed approach originates from the combustion community, where Manifold Generated Principal Component Analysis (MG-PCA) has been developed as a successful reduction technique. Applications consider ionizing shock waves in argon. The results obtained show that the use of the MG-PCA technique enables for a substantial reduction of the computational time. (C) 2015 AIP Publishing LLC.